Aluminium Leaching by Heterotrophic Microorganism Aspergillus niger: An Acidic Leaching? View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2017-08-11

AUTHORS

Martin Urík, Filip Polák, Marek Bujdoš, Ivana Pifková, Lucia Kořenková, Pavol Littera, Peter Matúš

ABSTRACT

Bioleaching of aluminium mineral boehmite by filamentous fungus Aspergillus niger was compared to chemical leaching by citric, oxalic and hydrochloric acids to evaluate the significance of A. niger’s metabolites on aluminium mobilization from this natural component of the aluminium ore. Our results highlighted that leaching efficiency of hydrochloric acid at pH 2 was 2.7 times lower compared to fungal bioleaching efficiency. When the organic acids were compared, oxalic acid was a stronger aluminium leaching agent than citric acid. The results suggest that fungal metabolites significantly promoted the release of aluminium and that their acidic properties, despite being useful, were not the most critical factor in the bioleaching of aluminium. More... »

PAGES

2369-2374

References to SciGraph publications

  • 2014-11-26. Potential of Microscopic Fungi Isolated from Mercury Contaminated Soils to Accumulate and Volatilize Mercury(II) in WATER, AIR, & SOIL POLLUTION
  • 2004. Organic Acid Production by Filamentous Fungi in ADVANCES IN FUNGAL BIOTECHNOLOGY FOR INDUSTRY, AGRICULTURE, AND MEDICINE
  • Identifiers

    URI

    http://scigraph.springernature.com/pub.10.1007/s13369-017-2784-8

    DOI

    http://dx.doi.org/10.1007/s13369-017-2784-8

    DIMENSIONS

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